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CFC100-4 3-1/2" Carbon Fiber Full Range Woofer 4 Ohm
Quick Overview
The Dayton Audio CFC100-4 is an affordable 4-ohm 3-1/2" full-range woofer designed to deliver clean, detailed sound from a compact footprint. Its woven carbon fiber cone combines low mass with excellent rigidity, while the aluminum voice coil former and low-loss rubber surround help maintain controlled, responsive performance. With a broad 90 to 12,000 Hz frequency range, the CFC100-4 is well suited for compact speaker designs that need strong midrange clarity and useful high-frequency extension.Product Highlights
- Woven carbon fiber cone provides excellent rigidity with low moving mass
- Low-loss rubber surround and large flat spider allow smooth, linear cone movement
- 20 mm 2-layer voice coil on an aluminum former supports controlled, responsive operation
- Low-profile stamped steel frame works well for flush or surface mounting
- Broad 90 to 12,000 Hz response delivers impressive bandwidth from a compact, affordable driver
Product Manuals / Spec Sheets / Downloads
Dayton Audio CFC100-4 Specification SheetBuying Options
Get premium cone construction and impressive clarity without the premium price. The Dayton Audio CFC100-4 combines a rigid woven carbon fiber cone with a compact 3-1/2" 4Ω design to deliver clean, detailed sound from space-conscious speaker projects. It’s a versatile, budget-friendly choice for DIY builds, upgrades, and custom audio systems where performance and value matter.
Key Specs:
- Nominal Diameter: 3-1/2"
- Power Handling (RMS): 15 Watts
- Power Handling (MAX): 30 Watts
- Impedance: 4Ω
- Frequency Response: 90 – 12,000 Hz
- Fs: 94 Hz
- Qts: 0.60
- Vas: 0.03 ft³
- Sensitivity: 85.5 dB 2.83V/1m
- Voice Coil Diameter: 0.75"
- Maximum Linear Excursion: ±2.5 mm
Engineered for Clarity and Control
The woven carbon fiber cone gives the CFC100-4 an ideal combination of strength and low moving mass. Its rigid construction helps resist unwanted flexing, allowing vocals, instruments, and other midrange detail to come through with impressive clarity. The distinctive woven carbon fiber finish also gives the driver a premium appearance that stands out well beyond its price point.
A 20 mm 2-layer voice coil wound on an aluminum former keeps the moving assembly lightweight and responsive. Combined with the ferrite motor, it provides the control needed for clean operation across the driver’s broad frequency range. Its 4Ω impedance also makes it well suited for a wide variety of compact speaker and custom audio applications, while 2.5 mm of Xmax provides useful low-frequency output from its compact 3-1/2" frame.
Stable Suspension with Installation Flexibility
The low-loss rubber surround and large-diameter flat spider provide a stable suspension system that allows smooth, controlled cone movement. A poly dust cap adds damping to help control unwanted resonances. Together, these components help the CFC100-4 maintain clean, balanced performance across a wide range of frequencies.
With a low-profile stamped steel frame, the CFC100-4 is especially easy to work into compact speaker designs. Its versatile construction is suitable for both flush and surface mounting, giving builders more flexibility when enclosure depth or installation space is limited. This makes it a great fit for small DIY speakers, custom installations, and creative projects where conventional drivers simply take up too much room.
Broad Response, Compact Size, Outstanding Value
With a frequency response of 90 to 12,000 Hz and 85.5 dB sensitivity, the CFC100-4 delivers impressive bandwidth from a remarkably compact package. Its extended upper-frequency response allows it to cover much of the audio spectrum on its own, opening the door to simple and space-efficient speaker designs. Best of all, it brings carbon fiber cone construction and versatile performance to projects where keeping costs low matters just as much as getting great sound.
| Speaker Series | Carbon Fiber |
| Model Number | CFC100-4 |
| Color | Black |
| Unit of Measure | Each |
| UPC | 848791012228 |
| Warranty - Parts | 5 Years |
| Warranty - Labor | 5 Years |
| Weight | -- lbs. |
| Speaker Type | Woofer |
| Nominal Diameter | 3-1/2" |
| Power Handling (RMS) | 15 watts |
| Power Handling (max) | 30 watts |
| Impedance | 4 ohms |
| Sensitivity | 85.5 dB @ 2.83V/1m |
| Frequency Response | 90-12,000 Hz |
| Voice Coil Diameter | 20 mm |
| DC Resistance (Re) | 3.3 ohms |
| Voice Coil Inductance (Le) | 0.18 mH @ 1 kHz |
| Resonant Frequency (Fs) | 94 Hz |
| Mechanical Q (Qms) | 3.00 |
| Electromagnetic Q (Qes) | 0.75 |
| Total Q (Qts) | 0.60 |
| Diaphragm Mass Inc. Airload (Mms) | 3.8g |
| Surface Area Of Cone (Sd) | 28 cm² |
| BL Product (BL) | 3.15 Tm |
| Compliance Equivalent Volume (Vas) | 0.834 liters |
| Maximum Linear Excursion (Xmax) | 2.5 mm |
| Cone / Diaphragm Material | Carbon Fiber |
| Surround Material | Rubber |
| Basket/Frame Material | Stamped Steel |
| Magnet Material | Ferrite |
| Overall Outside Diameter | 99 mm |
| Overall Depth | 48.5 mm |
| Baffle Cutout Diameter | 70 mm |
| # Mounting Holes | 4 |